APA (7th ed.) Citation

Duffield, P. C. (1958). Biology of Puccinia stakmanii. Duffield.

Chicago Style (17th ed.) Citation

Duffield, Paul Calvin. Biology of Puccinia Stakmanii. [Cedar Falls, Iowa]: Duffield, 1958.

MLA (9th ed.) Citation

Duffield, Paul Calvin. Biology of Puccinia Stakmanii. Duffield, 1958.